antminer s9i

[ma76680]

hi everyone!

I have been mining bitcoin in my antminer s9i since one year ago and today i decided to clean it, because there was too much dust inside. I cleaned everything, except the thermal paste. After that when I turned it on, it was raising the temperatures to 100 degrees and then it turn off. But this less than 2 min online. The fans seems to be working, because shows in the app that they are at about 4000 rpm and 5000 rpm. I tried to reset and instal everything new but the problem continues. If someone could help me to solve this problem, please say something I really don't know what is the problem... everythings seems to be working fine, and the asic is showing the normal green light at the back...

appreciate all help.

[NotFuzzyWarm]

Odds are 1 of the fans is actually dead - usually the one on the hot exhaust end. What often happens is that air from the 1 good working fan is what makes it spin, it is not actually being driven. Because only 1 fan is actually pushing air that in turn makes the miner overheat and shut down.

You can test the fans individually by just unplugging one and see if the other fires up when the miner is powered up.